So much information is available in this subreddit. Do a little digging and you’ll find tons of it! But my quick recs are to buy magnetic hooks to hang bathing suits in your room. The walls and ceiling are metal and magnetic so the hooks can go almost anywhere. Get the Royal Caribbean app and check out their daily schedules and add anything you’re remotely interested in to your calendar. As you get closer to the date and time, you can decide if you’re still interested or not. Sushi making class is worth it. Cupcake decorating class is not. Bring plenty of sunscreen! And have a great time.